host_hid_task.c

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//_____  I N C L U D E S ___________________________________________________

#include "config.h"
#include "conf_usb.h"
#include "host_hid_task.h"
#include "modules/usb/host_chap9/usb_host_task.h"
#include "modules/usb/host_chap9/usb_host_enum.h"
#include "lib_mcu/usb/usb_drv.h"

//_____ M A C R O S ________________________________________________________


//_____ D E F I N I T I O N S ______________________________________________


#ifndef LOG_STR_CODE
#define LOG_STR_CODE(str)
#else
U8 code log_enter_boot[]="Entering bootloader";
U8 code log_hid_connect[]="Generic HID connected";
#endif

//_____ D E C L A R A T I O N S ____________________________________________

U8 hid_connected;
#if( HID_GENERIC_DEMO_FULL == ENABLE )         
S8 hid_temperature=0;
U8 hid_potentiometer=0;
#endif
U8 hid_enter_dfu;
static U8 pipe_hid_in;
static U8 pipe_hid_out;


void host_hid_task_init(void)
{
   hid_enter_dfu=0;
   hid_connected=0;
}

void host_hid_task(void)
{
   U8 i;
   U8 buf_hid[8];
   
   // Test HID device connection
   if(Is_host_ready())
   {
      if(Is_new_device_connection_event())   //Device connection
      {
            hid_connected=0;
            hid_enter_dfu=0;
            for(i=0;i<Get_nb_supported_interface();i++)
            {
               if(Get_class(i)==HID_CLASS && Get_subclass(i)==NO_SUBCLASS && Get_protocol(i)==NO_PROTOCOL)
               {
                  LOG_STR_CODE(log_hid_connect);
                  hid_connected=1;
                  if(Is_ep_addr_in(Get_ep_addr(i,0)))
                  {
                     PIPE_HID_IN=host_get_hwd_pipe_nb(Get_ep_addr(i,0));
                     PIPE_HID_OUT=host_get_hwd_pipe_nb(Get_ep_addr(i,1));
                  }
                  else
                  {
                     PIPE_HID_IN=host_get_hwd_pipe_nb(Get_ep_addr(i,1));
                     PIPE_HID_OUT=host_get_hwd_pipe_nb(Get_ep_addr(i,0));
                  }
                  Host_select_pipe(PIPE_HID_IN);
                  Host_continuous_in_mode();
                  Host_unfreeze_pipe();
                  break;
               }
            }
      }
      if(hid_connected)
      {
         Host_select_pipe(PIPE_HID_IN);
         if(Is_host_in_received())
         {
            if(Is_host_stall()==FALSE)
            {
#if( HID_GENERIC_DEMO_FULL == ENABLE )         
               i=Usb_read_byte();                     // Leds
               i=Usb_read_byte();                     // Joystick
               hid_potentiometer=Usb_read_byte();     // Potentiometer
               hid_temperature=Usb_read_byte();       // Temperature
#else
               i=Usb_read_byte();                     // Joystick
#endif
            }
            Host_ack_in_received(); Host_send_in();
         }
         if(hid_enter_dfu==TRUE)
         {
            LOG_STR_CODE(log_enter_boot);
#if( HID_GENERIC_DEMO_FULL == ENABLE )         
            buf_hid[3]=0x55;
            buf_hid[4]=0xAA;
            host_send_data(PIPE_HID_OUT, 8, buf_hid);
#else
            buf_hid[0]=0x55;
            buf_hid[1]=0xAA;
            buf_hid[2]=0x55;
            buf_hid[3]=0xAA;
            usb_request.bmRequestType = USB_SETUP_SET_CLASS_INTER;
            usb_request.bRequest      = SETUP_HID_SET_REPORT;
            usb_request.wValue        = (REPORT_TYPE_FEATURE<<8);
            usb_request.wIndex        = 0;
            usb_request.wLength       = 4;
            usb_request.uncomplete_read = FALSE;
            host_send_control(buf_hid);
#endif
         }
      }
   }
   //Device disconnection...
   if(Is_device_disconnection_event())
   {
      Leds_off();
      hid_connected=0;
      hid_enter_dfu=0;
   }
}

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